packages/Python/lldbsuite/test/functionalities/thread/main.cpp

   1 #include <condition_variable>
   2 #include <mutex>
   3 #include <thread>
   4
   5 std::mutex mutex;
   6 std::condition_variable cond;
   7
   8 void *
   9 thread3(void *input)
  10 {
  11     std::unique_lock<std::mutex> lock(mutex);
  12     cond.notify_all(); // Set break point at this line.
  13     return NULL;
  14 }
  15
  16 void *
  17 thread2(void *input)
  18 {
  19     std::unique_lock<std::mutex> lock(mutex);
  20     cond.notify_all();
  21     cond.wait(lock);
  22     return NULL;
  23 }
  24
  25 void *
  26 thread1(void *input)
  27 {
  28     std::thread thread_2(thread2, nullptr);
  29     thread_2.join();
  30
  31     return NULL;
  32 }
  33
  34 int main()
  35 {
  36     std::unique_lock<std::mutex> lock(mutex);
  37
  38     std::thread thread_1(thread1, nullptr);
  39     cond.wait(lock);
  40
  41     std::thread thread_3(thread3, nullptr);
  42     cond.wait(lock);
  43
  44     lock.unlock();
  45
  46     thread_1.join();
  47     thread_3.join();
  48
  49     return 0;
  50 }